[ofw][patch][[ibbus] boot in SAN environment

[Leonid Keller]

Applied in 2045, thank  you.


________________________________

	From: ofw-bounces at lists.openfabrics.org
[mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Leonid Keller
	Sent: Monday, March 16, 2009 6:22 PM
	To: James Yang
	Cc: ofw at lists.openfabrics.org
	Subject: [ofw][patch][[ibbus] boot in SAN environment
	
	

	this patch adds a 5s delay to wait for hca up for remote boot in
SAN environment.

	Signed-off-by: James Yang  

	 
	Index: core/bus/kernel/bus_pnp.c
	
===================================================================
	--- core/bus/kernel/bus_pnp.c (revision 2032)
	+++ core/bus/kernel/bus_pnp.c (working copy)
	@@ -654,9 +654,10 @@
	  IN     IRP* const    p_irp, 
	   OUT    cl_irp_action_t* const p_action )
	 {
	- NTSTATUS   status;
	+ NTSTATUS   status = STATUS_SUCCESS; /*default to success*/
	  bus_fdo_ext_t  *p_ext;
	  bus_filter_t  *p_bfi;
	+ int     waitLoop = 0;
	 
	  BUS_ENTER( BUS_DBG_PNP );
	 
	@@ -673,16 +674,18 @@
	  p_bfi = p_ext->bus_filter;
	  CL_ASSERT( p_bfi->magic == BFI_MAGIC );
	 
	- if ( p_bfi->ca_guid == 0ULL )
	+ while ( p_bfi->ca_guid == 0ULL )
	  {
	   /* HCA not yet bound to a BFI slot (no PNP ADD event seen),
no bus
	    * relations yet.
	    */
	-  status = STATUS_SUCCESS;
	-  BUS_PRINT(BUS_DBG_PNP, ("%s ca_guid %I64x\n",p_bfi->whoami,
	+  BUS_PRINT(BUS_DBG_ERROR, ("%s ca_guid %I64x\n",p_bfi->whoami,
	         p_bfi->ca_guid));
	+  cl_thread_suspend( 100 ); /* suspend for 100 ms */
	+  waitLoop++;
	+  if(waitLoop>50) break;
	  }
	- else
	+ if ( p_bfi->ca_guid != 0ULL )
	  {
	   status = port_mgr_get_bus_relations( p_bfi->ca_guid, p_irp );
	   if( status == STATUS_SUCCESS || 
	@@ -1271,6 +1274,7 @@
	  switch( p_io_stack->Parameters.Power.Type )
	  {
	  case SystemPowerState:
	+#if 0
	   /*
	    * Process on the way up the stack.  We cannot block since
the 
	    * power dispatch function can be called at elevated IRQL if
the
	@@ -1287,7 +1291,7 @@
	   *p_action = IrpDoNothing;
	   status = STATUS_PENDING;
	   break;
	-
	+#endif
	  case DevicePowerState:
	  default:
	   /* Pass down and let the PDO driver handle it. */
	

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